60
testo 6651 Ethernet
-
1.4 Operation
1 Connect the inputs of the multimeter with the contacts
(2)
and
(3)
for
channel 1 or with contacts
(7)
and
(8)
for channel 2.
2 Transfer the reference analog value measured with the multimeter to
the P2A software (see volume 2, chapter 3, page 113
)
or enter it via
the user menu (see chapter
1.4.6.8, page 72
).
3 Disconnect connections between multimeter and contacts of the
testo 6651 and close service flap.
1.4 Operation
1.4.1 Relationship between user menu and
mini-DIN socket is active
The testo 6651 can be parameterized using either the user menu or the P2A
software (see
volume 2, chapter 3, page 113
).
The testo 6651 humidity transmitter can only be operated via
the display and keypad if the display option is available.
If the testo 6651 is connected to the P2A software, the user
menu is blocked for the duration of the communication. The
message
Service plug
is shown in the display of the
testo 6651. As soon as the P2A software is disconnected, the
user menu is accessible again.
1.4.2 Key cover
To prevent unauthorized operation of the keys, the standard key frame can
be replaced with a key cover.
If the key cover has been assembled, the service flap must be opened for
operation (see Section
Opening the
instrument,
chapter 1.3.3, page 22)
.
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